65333080

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{8291}}^1$

素因数の和:8499

約数の個数: 32

約数和(自身を含む): 147763440

約数和(自身を除く): 82430360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 8291, 16582, 33164, 41455, 66328, 82910, 165820, 331640, 1633327, 3266654, 6533308, 8166635, 13066616, 16333270, 32666540, 65333080]

約数ペア:

[(1, 65333080), (2, 32666540), (4, 16333270), (5, 13066616), (8, 8166635), (10, 6533308), (20, 3266654), (40, 1633327), (197, 331640), (394, 165820), (788, 82910), (985, 66328), (1576, 41455), (1970, 33164), (3940, 16582), (7880, 8291)]